Buggy code:
} } if ( ( this . string ) != null ) { return this . string ; } else { return Messages . bind ( Messages . status_nameCollision , "" ) ; } case IJavaModelStatusConstants . NO_ELEMENTS_TO_PROCESS : return Messages . operation_needElements ; case IJavaModelStatusConstants . NULL_NAME : return Messages . operation_needName ; case IJavaModelStatusConstants . NULL_PATH : return Messages . operation_needPath ; case IJavaModelStatusConstants . NULL_STRING : return Messages . operation_needString ; case IJavaModelStatusConstants . PATH_OUTSIDE_PROJECT : return Messages . bind ( Messages . operation_pathOutsideProject , new String [ ] { this . string , ( ( JavaElement ) ( this . elements [ 0 ] ) ) . toStringWithAncestors ( ) } ) ; case IJavaModelStatusConstants . READ_ONLY : IJavaElement element = this . elements [ 0 ] ; String name = element . getElementName ( ) ; if ( ( element instanceof IPackageFragment ) && ( name . equals ( IPackageFragment . DEFAULT_PACKAGE_NAME ) ) ) { return Messages . status_defaultPackageReadOnly ; } return Messages . bind ( Messages . status_readOnly , name ) ; case IJavaModelStatusConstants . RELATIVE_PATH : return Messages . bind ( Messages . operation_needAbsolutePath , getPath ( ) . toString ( ) ) ; case IJavaModelStatusConstants . TARGET_EXCEPTION : return Messages . status_targetException ; case IJavaModelStatusConstants . UPDATE_CONFLICT : return Messages . status_updateConflict ; case IJavaModelStatusConstants . NO_LOCAL_CONTENTS : return Messages . bind ( Messages . status_noLocalContents , getPath ( ) . toString ( ) ) ; case IJavaModelStatusConstants . CP_CONTAINER_PATH_UNBOUND : IJavaProject javaProject = ( ( IJavaProject ) ( this . elements [ 0 ] ) ) ; ClasspathContainerInitializer initializer = JavaCore . getClasspathContainerInitializer ( this . path . segment ( 0 ) ) ; String description = null ; if ( initializer != null ) description = initializer . getDescription ( this . path , javaProject ) ; if ( description == null ) description = this . path . makeRelative ( ) . toString ( ) ; return Messages . bind ( Messages . classpath_unboundContainerPath , new String [ ] { description , javaProject . getElementName ( ) } ) ; case IJavaModelStatusConstants . INVALID_CP_CONTAINER_ENTRY : javaProject = ( ( IJavaProject ) ( this . elements [ 0 ] ) ) ; IClasspathContainer container = null ; description = null ; try { container = JavaCore . getClasspathContainer ( this . path , javaProject ) ; } catch ( JavaModelException e ) { } if ( container == null ) { initializer = JavaCore . getClasspathContainerInitializer ( this . path . segment ( 0 ) ) ; if ( initializer != null ) description = initializer . getDescription ( this . path , javaProject ) ; } else { description = container . getDescription ( ) ; } if ( description == null ) description = this . path . makeRelative ( ) . toString ( ) ; return Messages . bind ( Messages . classpath_invalidContainer , new String [ ] { description , javaProject . getElementName ( ) } ) ; case IJavaModelStatusConstants . CP_VARIABLE_PATH_UNBOUND : javaProject = ( ( IJavaProject ) ( this . elements [ 0 ] ) ) ; return Messages . bind ( Messages . classpath_unboundVariablePath , new String [ ] { this . path . makeRelative ( ) . toString ( ) , javaProject . getElementName ( ) } ) ; case IJavaModelStatusConstants . CLASSPATH_CYCLE : javaProject = ( ( IJavaProject ) ( this . elements [ 0 ] ) ) ; <START_BUG> return Messages . bind ( Messages . classpath_cycle , javaProject . getElementName ( ) ) ; <END_BUG> case IJavaModelStatusConstants . DISABLED_CP_EXCLUSION_PATTERNS : javaProject = ( ( IJavaProject ) ( this . elements [ 0 ] ) ) ; String projectName = javaProject . getElementName ( ) ; IPath newPath = this . path ; if ( this . path . segment ( 0 ) . toString ( ) . equals ( projectName ) ) { newPath = this . path . removeFirstSegments ( 1 ) ; } return Messages . bind ( Messages . classpath_disabledInclusionExclusionPatterns , new String [ ] { newPath . makeRelative ( ) . toString ( ) , projectName } ) ; case IJavaModelStatusConstants . DISABLED_CP_MULTIPLE_OUTPUT_LOCATIONS : javaProject = ( ( IJavaProject ) ( this . elements [ 0 ] ) ) ; projectName = javaProject . getElementName ( ) ; newPath = this . path ; if ( this . path . segment ( 0 ) . toString ( ) . equals ( projectName ) ) { newPath = this . path . removeFirstSegments ( 1 ) ; } return Messages . bind ( Messages . classpath_disabledMultipleOutputLocations , new String [ ] { newPath . makeRelative ( ) . toString ( ) , projectName } ) ; case IJavaModelStatusConstants . CANNOT_RETRIEVE_ATTACHED_JAVADOC : if ( ( ( this . elements ) != null ) && ( ( this . elements . length ) == 1 ) ) { if ( ( this . string ) != null ) { return Messages . bind ( Messages . status_cannot_retrieve_attached_javadoc , ( ( JavaElement ) ( this . elements [ 0 ] ) ) . toStringWithAncestors ( ) , this . string ) ; } return Messages . bind ( Messages . status_cannot_retrieve_attached_javadoc , ( ( JavaElement ) ( this . elements [ 0 ] ) ) . toStringWithAncestors ( ) , "" ) ; } if ( ( this . string ) != null ) { return Messages . bind ( Messages . status_cannot_retrieve_attached_javadoc , this . string , "" ) ; } break ; case IJavaModelStatusConstants . CANNOT_RETRIEVE_ATTACHED_JAVADOC_TIMEOUT : if ( ( ( this . elements ) != null ) && ( ( this . elements . length ) == 1 ) ) { if ( ( this . string ) != null ) { return Messages . bind ( Messages . status_timeout_javadoc , ( ( JavaElement ) ( this . elements [ 0 ] ) ) . toStringWithAncestors ( ) , this . string ) ; }

Fix:
return Messages . bind ( Messages . classpath_cycle , new String [ ] { javaProject . getElementName ( ) , this . string } ) ;